Today i try to buy a battery for my nokia 3500, which use a BL-5C.

The shop at lowyat tell me the ori is about rm 100.

I try to find some other shop, got one seller tell me got 2 type, 1 is AA cost rm 38, one is lower grade rm18 only. The AA got a sticker 'AA original' behind while the other don't have the sticker.

Why is the price different so much?

My previous one is kembang already after use for long time, it can last 3-4 days when new, now only can last 1 day with normal light use only, and i decide to buy a replacement. Will it cause electric hazard if continue to use the old one for spare? Is it prone to the explode problem as mentioned by TS?

Thank you and happy new year =)